I have a BK10 which has been working fine on my old PC with a 5.0 Bluetooth dongle running Windows 10. I've just got a new PC with onboard Bluetooth running Windows 11 and I cannot connect my old BK10. Thinking the hardware might be out of date I purchased a new BK10, but again that won't connect either to Windows 11. I've tried reset both keyboards (FN + Left Shift + Del) and whilst both keyboards reset, neither would pair with Windows 11.